plasma membrane


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Related to plasma membrane: mitochondria, cell membrane

plasma membrane

cell′ mem`brane


n.
the semipermeable membrane enclosing the cytoplasm of a cell.
[1865–70]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.plasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cellplasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; "all cells have a cell membrane"
cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
semipermeable membrane - a membrane (as a cell membrane) that allows some molecules to pass through but not others
References in periodicals archive ?
Every cell in your body has a plasma membrane, and every membrane can be torn," Dr.
The percentage of motility, live, intact plasma membrane, capacitation and acrosome reaction of spermatozoa after treatment:
Furthermore, impairments in the calcium sequestration and extrusion pumps of either the ER (SERCA pumps) or the plasma membrane energy-dependent calcium pumps (PMCA) have reduced activity in aged neurons.
Our results showed that the tested triterpenic acids do affect the permeability of the plasma membrane, and facilitate the entrance of the molecules, without causing necrotic effects (Mangoni et al.
Spermatozoa morphology, motility, plasma membrane integrity, acrosome integrity and DNA integrity were evaluated immediately after spermatozoa extraction.
BCECF is a neutral lipophilic form of bis-carboxyfluorescein which diffuses freely through the plasma membrane.
This included disorganization of the cytoplasm and loss of organelles, a marked increase in the number and size of lysosomes, the disruption of plasma membranes, the loss of nuclear membranes, nucleoli, and the fragmentation of condensed chromatin.
pneumoniae is to bind copper ions near the plasma membrane as soon as they enter the cell and, after diffusion of copper-bound CupA in the membrane, to deliver copper directly to the exporter CopA, which extrudes copper out of the cell.
Recent reports dealing with AQPs, nitric oxide synthase (NOS isoforms) and water permeability show that an NO-mediated pathway results in the insertion of AQP2 from the cytoplasm into the plasma membrane in the kidney.
The topics include fundamentals of phloem transport physiology, roles of plasma membrane transporters in phloem functions, sieve element occlusion, the effect of long-distance signaling on development, and the behavioral and molecular-genetic basis of resistance against phloem-feeding insects.
An intact cytoskeletal network, synaptic plasma membrane proteins, and soluble proteins that are reversibly associated with plasma membrane proteins are the main requirements of this process.
The ATP2B2 gene codes for a plasma membrane calcium transporting ATP-ase.

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